songbird family, order Passeriformes, sometimes collectively termed New World seedeaters. The group includes grosbeaks, cardinals, longspurs, ... Found on http://www.britannica.com/eb/a-z/f/64
Fringillidae is a large family of Conirostral birds comprising the finches. They are remarkable for the shortness thickness and powerful structure of their beak, the upper and lower mandibles being for the most part equal thickness. The mandibles are almost as high as they are wide, so that when the beak is closed is looks like a short cone divided... Found on http://www.probertencyclopaedia.com/browse/BF.HTM